Answer:
Against the sun I protect your eyes and am often worn on the face of spies
I can only be played on a windy day. What am I?
I am heavy forward, but backward I'm not. What am I?
I can be simple or I can be complex. I can be found in this riddle or in everyday life. I can be shapes or even colors.
I grow up while growing down
If itβs information you seek, come and see me. If itβs pairs of letters you need, I have consecutively three. What am I?